Network Working Group N. Matsuhira
Internet-Draft Fujitsu Limited
Intended status: Informational June 1, 2019
Expires: December 3, 2019
Multiple IPv4 - IPv6 address mapping encapsulation - prefix translator(M46E-PT)draft-matsuhira-m46e-pt-06
Abstract
This document specifies Multiple IPv4 - IPv6 mapping encapsulation -
Prefix Translator (M46E-PT) specification. M46E-PT expand IPv4
network plane by connecting M46E-FP domain and M46E-PR domain.
M46E-PT translate prefix part of M46E-FP address and M46E-PR address
both are IPv6 address. M46E-PT does not translate IPv4 packet which
is encapsulated, so transparency of IPv4 packet is not broken.
Requirements Language
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in RFC 2119 [RFC2119].
Status of this Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
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This Internet-Draft will expire on December 3, 2019.
Copyright Notice
Copyright (c) 2019 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
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Internet-Draft M46E-PT June 20191. Introduction
This document provide M46E Prefix Translator (M46E-PT) specification.
The basic strategy for IPv6 deployment is dual stack. However,
because of exhaustion of IPv4 address, there will be no IPv4
addresses for configuring dual stack in near future. That means
there will be IPv6 only networks automatically.
However, there are many IPv4 only networks still exist and those
seems continuous use in near future. That means methods continuous
use of IPv4 network over IPv6 only network will be required.
M46E-FP [I-D.draft-matsuhira-m46e-fp] provide such methods. In
addition, M46E-PR [I-D.draft-matsuhira-m46e-pr] also provide such
methots. M46E-FP is backbone network based approach, on the other
hand, M46E-PR is stub network based approach.
M46E-PT expand IPv4 network plane by connecting M46E-FP domain and
M46E-PR domain. M46E-PT translate prefix part of M46E-FP address and
M46E-PR address both are IPv6 address. M46E-PT does not translate
IPv4 packet which is encapsulated, so transparency of IPv4 packet is
not broken.
2. Basic Network Configuration
Figure 1 shows network configuration with M46E-PT. At large view,
the network consists three parts, M46E-FP domain, M46E-PR domain, and
M46E-PT. M46E-PT connect M46E-FP domain and M46E-PR domain.
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Internet-Draft M46E-PT June 20194. Sample Configuration
Figure Figure 6shows sample confiuration of M46E-PT. In this
example, there are four IPv4 stub network with the same IPv4 network
plane, and two of four are in M46E-FP domain and other two of four
are in M46E-PR domain.
In this example, M46E-FP prefix is 2001:0db8:0:46::/64.
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